Add telegram bot

2025-12-16 20:06:16 +07:00
parent 9fd93a185c
commit 412de3bf05
32 changed files with 1721 additions and 3 deletions
--- a/backend/app/api/v1/init.py
+++ b/backend/app/api/v1/init.py
@@ -1,6 +1,6 @@
 from fastapi import APIRouter

-from app.api.v1 import auth, users, marathons, games, challenges, wheel, feed, admin, events, assignments
+from app.api.v1 import auth, users, marathons, games, challenges, wheel, feed, admin, events, assignments, telegram

 router = APIRouter(prefix="/api/v1")

@@ -14,3 +14,4 @@ router.include_router(feed.router)
 router.include_router(admin.router)
 router.include_router(events.router)
 router.include_router(assignments.router)
+router.include_router(telegram.router)
--- a/backend/app/api/v1/assignments.py
+++ b/backend/app/api/v1/assignments.py
@@ -9,7 +9,7 @@ from sqlalchemy.orm import selectinload

 from app.api.deps import DbSession, CurrentUser
 from app.models import (
-    Assignment, AssignmentStatus, Participant, Challenge, User,
+    Assignment, AssignmentStatus, Participant, Challenge, User, Marathon,
    Dispute, DisputeStatus, DisputeComment, DisputeVote,
 )
 from app.schemas import (
@@ -19,6 +19,7 @@ from app.schemas import (
 )
 from app.schemas.user import UserPublic
 from app.services.storage import storage_service
+from app.services.telegram_notifier import telegram_notifier

 router = APIRouter(tags=["assignments"])

@@ -345,6 +346,17 @@ async def create_dispute(
    await db.commit()
    await db.refresh(dispute)

+    # Send notification to assignment owner
+    result = await db.execute(select(Marathon).where(Marathon.id == marathon_id))
+    marathon = result.scalar_one_or_none()
+    if marathon:
+        await telegram_notifier.notify_dispute_raised(
+            db,
+            user_id=assignment.participant.user_id,
+            marathon_title=marathon.title,
+            challenge_title=assignment.challenge.title
+        )
+
    # Load relationships for response
    result = await db.execute(
        select(Dispute)
--- a/backend/app/api/v1/marathons.py
+++ b/backend/app/api/v1/marathons.py
@@ -27,6 +27,7 @@ from app.schemas import (
    UserPublic,
    SetParticipantRole,
 )
+from app.services.telegram_notifier import telegram_notifier

 router = APIRouter(prefix="/marathons", tags=["marathons"])

@@ -294,6 +295,9 @@ async def start_marathon(marathon_id: int, current_user: CurrentUser, db: DbSess

    await db.commit()

+    # Send Telegram notifications
+    await telegram_notifier.notify_marathon_start(db, marathon_id, marathon.title)
+
    return await get_marathon(marathon_id, current_user, db)


@@ -319,6 +323,9 @@ async def finish_marathon(marathon_id: int, current_user: CurrentUser, db: DbSes

    await db.commit()

+    # Send Telegram notifications
+    await telegram_notifier.notify_marathon_finish(db, marathon_id, marathon.title)
+
    return await get_marathon(marathon_id, current_user, db)


--- a/backend/app/api/v1/telegram.py
+++ b/backend/app/api/v1/telegram.py
@@ -0,0 +1,387 @@
+import logging
+
+from fastapi import APIRouter
+from pydantic import BaseModel
+from sqlalchemy import select, func
+from sqlalchemy.orm import selectinload
+
+from app.api.deps import DbSession, CurrentUser
+from app.core.config import settings
+from app.core.security import create_telegram_link_token, verify_telegram_link_token
+from app.models import User, Participant, Marathon, Assignment, Challenge, Event, Game
+
+logger = logging.getLogger(__name__)
+
+router = APIRouter(prefix="/telegram", tags=["telegram"])
+
+
+# Schemas
+class TelegramLinkToken(BaseModel):
+    token: str
+    bot_url: str
+
+
+class TelegramConfirmLink(BaseModel):
+    token: str
+    telegram_id: int
+    telegram_username: str | None = None
+
+
+class TelegramLinkResponse(BaseModel):
+    success: bool
+    nickname: str | None = None
+    error: str | None = None
+
+
+class TelegramUserResponse(BaseModel):
+    id: int
+    nickname: str
+    login: str
+    avatar_url: str | None = None
+
+    class Config:
+        from_attributes = True
+
+
+class TelegramMarathonResponse(BaseModel):
+    id: int
+    title: str
+    status: str
+    total_points: int
+    position: int
+
+    class Config:
+        from_attributes = True
+
+
+class TelegramMarathonDetails(BaseModel):
+    marathon: dict
+    participant: dict
+    position: int
+    active_events: list[dict]
+    current_assignment: dict | None
+
+
+class TelegramStatsResponse(BaseModel):
+    marathons_completed: int
+    marathons_active: int
+    challenges_completed: int
+    total_points: int
+    best_streak: int
+
+
+# Endpoints
+@router.post("/generate-link-token", response_model=TelegramLinkToken)
+async def generate_link_token(current_user: CurrentUser):
+    """Generate a one-time token for Telegram account linking."""
+    logger.info(f"[TG_LINK] Generating link token for user {current_user.id} ({current_user.nickname})")
+
+    # Create a short token (≤64 chars) for Telegram deep link
+    token = create_telegram_link_token(
+        user_id=current_user.id,
+        expire_minutes=settings.TELEGRAM_LINK_TOKEN_EXPIRE_MINUTES
+    )
+    logger.info(f"[TG_LINK] Token created: {token} (length: {len(token)})")
+
+    bot_username = settings.TELEGRAM_BOT_USERNAME or "GameMarathonBot"
+    bot_url = f"https://t.me/{bot_username}?start={token}"
+    logger.info(f"[TG_LINK] Bot URL: {bot_url}")
+
+    return TelegramLinkToken(token=token, bot_url=bot_url)
+
+
+@router.post("/confirm-link", response_model=TelegramLinkResponse)
+async def confirm_telegram_link(data: TelegramConfirmLink, db: DbSession):
+    """Confirm Telegram account linking (called by bot)."""
+    logger.info(f"[TG_CONFIRM] ========== CONFIRM LINK REQUEST ==========")
+    logger.info(f"[TG_CONFIRM] telegram_id: {data.telegram_id}")
+    logger.info(f"[TG_CONFIRM] telegram_username: {data.telegram_username}")
+    logger.info(f"[TG_CONFIRM] token: {data.token}")
+
+    # Verify short token and extract user_id
+    user_id = verify_telegram_link_token(data.token)
+    logger.info(f"[TG_CONFIRM] Verified user_id: {user_id}")
+
+    if user_id is None:
+        logger.error(f"[TG_CONFIRM] FAILED: Token invalid or expired")
+        return TelegramLinkResponse(success=False, error="Ссылка недействительна или устарела")
+
+    # Get user
+    result = await db.execute(select(User).where(User.id == user_id))
+    user = result.scalar_one_or_none()
+    logger.info(f"[TG_CONFIRM] Found user: {user.nickname if user else 'NOT FOUND'}")
+
+    if not user:
+        logger.error(f"[TG_CONFIRM] FAILED: User not found")
+        return TelegramLinkResponse(success=False, error="Пользователь не найден")
+
+    # Check if telegram_id already linked to another user
+    result = await db.execute(
+        select(User).where(User.telegram_id == data.telegram_id, User.id != user_id)
+    )
+    existing_user = result.scalar_one_or_none()
+    if existing_user:
+        logger.error(f"[TG_CONFIRM] FAILED: Telegram already linked to user {existing_user.id}")
+        return TelegramLinkResponse(
+            success=False,
+            error="Этот Telegram аккаунт уже привязан к другому пользователю"
+        )
+
+    # Link account
+    logger.info(f"[TG_CONFIRM] Linking telegram_id={data.telegram_id} to user_id={user_id}")
+    user.telegram_id = data.telegram_id
+    user.telegram_username = data.telegram_username
+
+    await db.commit()
+    logger.info(f"[TG_CONFIRM] SUCCESS! User {user.nickname} linked to Telegram {data.telegram_id}")
+
+    return TelegramLinkResponse(success=True, nickname=user.nickname)
+
+
+@router.get("/user/{telegram_id}", response_model=TelegramUserResponse | None)
+async def get_user_by_telegram_id(telegram_id: int, db: DbSession):
+    """Get user by Telegram ID."""
+    logger.info(f"[TG_USER] Looking up user by telegram_id={telegram_id}")
+
+    result = await db.execute(
+        select(User).where(User.telegram_id == telegram_id)
+    )
+    user = result.scalar_one_or_none()
+
+    if not user:
+        logger.info(f"[TG_USER] No user found for telegram_id={telegram_id}")
+        return None
+
+    logger.info(f"[TG_USER] Found user: {user.id} ({user.nickname})")
+    return TelegramUserResponse(
+        id=user.id,
+        nickname=user.nickname,
+        login=user.login,
+        avatar_url=user.avatar_url
+    )
+
+
+@router.post("/unlink/{telegram_id}", response_model=TelegramLinkResponse)
+async def unlink_telegram(telegram_id: int, db: DbSession):
+    """Unlink Telegram account."""
+    result = await db.execute(
+        select(User).where(User.telegram_id == telegram_id)
+    )
+    user = result.scalar_one_or_none()
+
+    if not user:
+        return TelegramLinkResponse(success=False, error="Аккаунт не найден")
+
+    user.telegram_id = None
+    user.telegram_username = None
+
+    await db.commit()
+
+    return TelegramLinkResponse(success=True)
+
+
+@router.get("/marathons/{telegram_id}", response_model=list[TelegramMarathonResponse])
+async def get_user_marathons(telegram_id: int, db: DbSession):
+    """Get user's marathons by Telegram ID."""
+    # Get user
+    result = await db.execute(
+        select(User).where(User.telegram_id == telegram_id)
+    )
+    user = result.scalar_one_or_none()
+
+    if not user:
+        return []
+
+    # Get participations with marathons
+    result = await db.execute(
+        select(Participant, Marathon)
+        .join(Marathon, Participant.marathon_id == Marathon.id)
+        .where(Participant.user_id == user.id)
+        .order_by(Marathon.created_at.desc())
+    )
+    participations = result.all()
+
+    marathons = []
+    for participant, marathon in participations:
+        # Calculate position
+        position_result = await db.execute(
+            select(func.count(Participant.id) + 1)
+            .where(
+                Participant.marathon_id == marathon.id,
+                Participant.total_points > participant.total_points
+            )
+        )
+        position = position_result.scalar() or 1
+
+        marathons.append(TelegramMarathonResponse(
+            id=marathon.id,
+            title=marathon.title,
+            status=marathon.status.value if hasattr(marathon.status, 'value') else marathon.status,
+            total_points=participant.total_points,
+            position=position
+        ))
+
+    return marathons
+
+
+@router.get("/marathon/{marathon_id}", response_model=TelegramMarathonDetails | None)
+async def get_marathon_details(marathon_id: int, telegram_id: int, db: DbSession):
+    """Get marathon details for user by Telegram ID."""
+    # Get user
+    result = await db.execute(
+        select(User).where(User.telegram_id == telegram_id)
+    )
+    user = result.scalar_one_or_none()
+
+    if not user:
+        return None
+
+    # Get marathon
+    result = await db.execute(
+        select(Marathon).where(Marathon.id == marathon_id)
+    )
+    marathon = result.scalar_one_or_none()
+
+    if not marathon:
+        return None
+
+    # Get participant
+    result = await db.execute(
+        select(Participant)
+        .where(Participant.marathon_id == marathon_id, Participant.user_id == user.id)
+    )
+    participant = result.scalar_one_or_none()
+
+    if not participant:
+        return None
+
+    # Calculate position
+    position_result = await db.execute(
+        select(func.count(Participant.id) + 1)
+        .where(
+            Participant.marathon_id == marathon_id,
+            Participant.total_points > participant.total_points
+        )
+    )
+    position = position_result.scalar() or 1
+
+    # Get active events
+    result = await db.execute(
+        select(Event)
+        .where(Event.marathon_id == marathon_id, Event.is_active == True)
+    )
+    active_events = result.scalars().all()
+
+    events_data = [
+        {
+            "id": e.id,
+            "type": e.type.value if hasattr(e.type, 'value') else e.type,
+            "start_time": e.start_time.isoformat() if e.start_time else None,
+            "end_time": e.end_time.isoformat() if e.end_time else None
+        }
+        for e in active_events
+    ]
+
+    # Get current assignment
+    result = await db.execute(
+        select(Assignment)
+        .options(
+            selectinload(Assignment.challenge).selectinload(Challenge.game)
+        )
+        .where(
+            Assignment.participant_id == participant.id,
+            Assignment.status == "active"
+        )
+        .order_by(Assignment.started_at.desc())
+        .limit(1)
+    )
+    assignment = result.scalar_one_or_none()
+
+    assignment_data = None
+    if assignment:
+        challenge = assignment.challenge
+        game = challenge.game if challenge else None
+        assignment_data = {
+            "id": assignment.id,
+            "status": assignment.status.value if hasattr(assignment.status, 'value') else assignment.status,
+            "challenge": {
+                "id": challenge.id if challenge else None,
+                "title": challenge.title if challenge else None,
+                "difficulty": challenge.difficulty.value if challenge and hasattr(challenge.difficulty, 'value') else (challenge.difficulty if challenge else None),
+                "points": challenge.points if challenge else None,
+                "game": {
+                    "id": game.id if game else None,
+                    "title": game.title if game else None
+                }
+            } if challenge else None
+        }
+
+    return TelegramMarathonDetails(
+        marathon={
+            "id": marathon.id,
+            "title": marathon.title,
+            "status": marathon.status.value if hasattr(marathon.status, 'value') else marathon.status,
+            "description": marathon.description
+        },
+        participant={
+            "total_points": participant.total_points,
+            "current_streak": participant.current_streak,
+            "drop_count": participant.drop_count
+        },
+        position=position,
+        active_events=events_data,
+        current_assignment=assignment_data
+    )
+
+
+@router.get("/stats/{telegram_id}", response_model=TelegramStatsResponse | None)
+async def get_user_stats(telegram_id: int, db: DbSession):
+    """Get user's overall statistics by Telegram ID."""
+    # Get user
+    result = await db.execute(
+        select(User).where(User.telegram_id == telegram_id)
+    )
+    user = result.scalar_one_or_none()
+
+    if not user:
+        return None
+
+    # Get participations
+    result = await db.execute(
+        select(Participant, Marathon)
+        .join(Marathon, Participant.marathon_id == Marathon.id)
+        .where(Participant.user_id == user.id)
+    )
+    participations = result.all()
+
+    marathons_completed = 0
+    marathons_active = 0
+    total_points = 0
+    best_streak = 0
+
+    for participant, marathon in participations:
+        status = marathon.status.value if hasattr(marathon.status, 'value') else marathon.status
+        if status == "finished":
+            marathons_completed += 1
+        elif status == "active":
+            marathons_active += 1
+
+        total_points += participant.total_points
+        if participant.current_streak > best_streak:
+            best_streak = participant.current_streak
+
+    # Count completed assignments
+    result = await db.execute(
+        select(func.count(Assignment.id))
+        .join(Participant, Assignment.participant_id == Participant.id)
+        .where(Participant.user_id == user.id, Assignment.status == "completed")
+    )
+    challenges_completed = result.scalar() or 0
+
+    return TelegramStatsResponse(
+        marathons_completed=marathons_completed,
+        marathons_active=marathons_active,
+        challenges_completed=challenges_completed,
+        total_points=total_points,
+        best_streak=best_streak
+    )
--- a/backend/app/api/v1/users.py
+++ b/backend/app/api/v1/users.py
@@ -106,3 +106,22 @@ async def link_telegram(
    await db.commit()

    return MessageResponse(message="Telegram account linked successfully")
+
+
+@router.post("/me/telegram/unlink", response_model=MessageResponse)
+async def unlink_telegram(
+    current_user: CurrentUser,
+    db: DbSession,
+):
+    if not current_user.telegram_id:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="Telegram account is not linked",
+        )
+
+    current_user.telegram_id = None
+    current_user.telegram_username = None
+
+    await db.commit()
+
+    return MessageResponse(message="Telegram account unlinked successfully")
--- a/backend/app/core/config.py
+++ b/backend/app/core/config.py
@@ -20,6 +20,8 @@ class Settings(BaseSettings):

    # Telegram
    TELEGRAM_BOT_TOKEN: str = ""
+    TELEGRAM_BOT_USERNAME: str = ""
+    TELEGRAM_LINK_TOKEN_EXPIRE_MINUTES: int = 10

    # Uploads
    UPLOAD_DIR: str = "uploads"
--- a/backend/app/core/security.py
+++ b/backend/app/core/security.py
@@ -1,3 +1,8 @@
+import base64
+import hashlib
+import hmac
+import struct
+import time
 from datetime import datetime, timedelta
 from typing import Any

@@ -35,3 +40,71 @@ def decode_access_token(token: str) -> dict | None:
        return payload
    except jwt.JWTError:
        return None
+
+
+def create_telegram_link_token(user_id: int, expire_minutes: int = 10) -> str:
+    """
+    Create a short token for Telegram account linking.
+    Format: base64url encoded binary data (no separators).
+    Structure: user_id (4 bytes) + expire_at (4 bytes) + signature (8 bytes) = 16 bytes -> 22 chars base64url.
+    """
+    expire_at = int(time.time()) + (expire_minutes * 60)
+
+    # Pack user_id and expire_at as unsigned 32-bit integers (8 bytes total)
+    data = struct.pack(">II", user_id, expire_at)
+
+    # Create HMAC signature (take first 8 bytes)
+    signature = hmac.new(
+        settings.SECRET_KEY.encode(),
+        data,
+        hashlib.sha256
+    ).digest()[:8]
+
+    # Combine data + signature (16 bytes)
+    token_bytes = data + signature
+
+    # Encode as base64url without padding
+    token = base64.urlsafe_b64encode(token_bytes).decode().rstrip("=")
+
+    return token
+
+
+def verify_telegram_link_token(token: str) -> int | None:
+    """
+    Verify Telegram link token and return user_id if valid.
+    Returns None if token is invalid or expired.
+    """
+    try:
+        # Add padding if needed for base64 decoding
+        padding = 4 - (len(token) % 4)
+        if padding != 4:
+            token += "=" * padding
+
+        token_bytes = base64.urlsafe_b64decode(token)
+
+        if len(token_bytes) != 16:
+            return None
+
+        # Unpack data
+        data = token_bytes[:8]
+        provided_signature = token_bytes[8:]
+
+        user_id, expire_at = struct.unpack(">II", data)
+
+        # Check expiration
+        if time.time() > expire_at:
+            return None
+
+        # Verify signature
+        expected_signature = hmac.new(
+            settings.SECRET_KEY.encode(),
+            data,
+            hashlib.sha256
+        ).digest()[:8]
+
+        if not hmac.compare_digest(provided_signature, expected_signature):
+            return None
+
+        return user_id
+    except (ValueError, struct.error, Exception):
+        return None
--- a/backend/app/schemas/user.py
+++ b/backend/app/schemas/user.py
@@ -33,6 +33,8 @@ class UserPublic(UserBase):
    login: str
    avatar_url: str | None = None
    role: str = "user"
+    telegram_id: int | None = None
+    telegram_username: str | None = None
    created_at: datetime

    class Config:
--- a/backend/app/services/disputes.py
+++ b/backend/app/services/disputes.py
@@ -8,8 +8,9 @@ from sqlalchemy.orm import selectinload

 from app.models import (
    Dispute, DisputeStatus, DisputeVote,
-    Assignment, AssignmentStatus, Participant,
+    Assignment, AssignmentStatus, Participant, Marathon, Challenge, Game,
 )
+from app.services.telegram_notifier import telegram_notifier


 class DisputeService:
@@ -58,8 +59,53 @@ class DisputeService:

        await db.commit()

+        # Send Telegram notification about dispute resolution
+        await self._notify_dispute_resolved(db, dispute, result_status == DisputeStatus.RESOLVED_INVALID.value)
+
        return result_status, votes_valid, votes_invalid

+    async def _notify_dispute_resolved(
+        self,
+        db: AsyncSession,
+        dispute: Dispute,
+        is_valid: bool
+    ) -> None:
+        """Send notification about dispute resolution to the assignment owner."""
+        try:
+            # Get assignment with challenge and marathon info
+            result = await db.execute(
+                select(Assignment)
+                .options(
+                    selectinload(Assignment.participant),
+                    selectinload(Assignment.challenge).selectinload(Challenge.game)
+                )
+                .where(Assignment.id == dispute.assignment_id)
+            )
+            assignment = result.scalar_one_or_none()
+            if not assignment:
+                return
+
+            participant = assignment.participant
+            challenge = assignment.challenge
+            game = challenge.game if challenge else None
+
+            # Get marathon
+            result = await db.execute(
+                select(Marathon).where(Marathon.id == game.marathon_id if game else 0)
+            )
+            marathon = result.scalar_one_or_none()
+
+            if marathon and participant:
+                await telegram_notifier.notify_dispute_resolved(
+                    db,
+                    user_id=participant.user_id,
+                    marathon_title=marathon.title,
+                    challenge_title=challenge.title if challenge else "Unknown",
+                    is_valid=is_valid
+                )
+        except Exception as e:
+            print(f"[DisputeService] Failed to send notification: {e}")
+
    async def _handle_invalid_proof(self, db: AsyncSession, dispute: Dispute) -> None:
        """
        Handle the case when proof is determined to be invalid.
--- a/backend/app/services/events.py
+++ b/backend/app/services/events.py
@@ -6,6 +6,7 @@ from sqlalchemy.ext.asyncio import AsyncSession

 from app.models import Event, EventType, Marathon, Challenge, Difficulty, Participant, Assignment, AssignmentStatus
 from app.schemas.event import EventEffects, EVENT_INFO, COMMON_ENEMY_BONUSES
+from app.services.telegram_notifier import telegram_notifier


 class EventService:
@@ -89,6 +90,14 @@ class EventService:
        if created_by_id:
            await db.refresh(event, ["created_by"])

+        # Send Telegram notifications
+        result = await db.execute(select(Marathon).where(Marathon.id == marathon_id))
+        marathon = result.scalar_one_or_none()
+        if marathon:
+            await telegram_notifier.notify_event_start(
+                db, marathon_id, event_type, marathon.title
+            )
+
        return event

    async def _assign_common_enemy_to_all(
@@ -124,6 +133,9 @@ class EventService:
        result = await db.execute(select(Event).where(Event.id == event_id))
        event = result.scalar_one_or_none()
        if event:
+            event_type = event.type
+            marathon_id = event.marathon_id
+
            event.is_active = False
            if not event.end_time:
                event.end_time = datetime.utcnow()
@@ -145,6 +157,14 @@ class EventService:

            await db.commit()

+            # Send Telegram notifications about event end
+            result = await db.execute(select(Marathon).where(Marathon.id == marathon_id))
+            marathon = result.scalar_one_or_none()
+            if marathon:
+                await telegram_notifier.notify_event_end(
+                    db, marathon_id, event_type, marathon.title
+                )
+
    async def consume_jackpot(self, db: AsyncSession, event_id: int) -> None:
        """Consume jackpot event after one spin"""
        await self.end_event(db, event_id)
--- a/backend/app/services/telegram_notifier.py
+++ b/backend/app/services/telegram_notifier.py
@@ -0,0 +1,212 @@
+import logging
+from typing import List
+
+import httpx
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.core.config import settings
+from app.models import User, Participant, Marathon
+
+logger = logging.getLogger(__name__)
+
+
+class TelegramNotifier:
+    """Service for sending Telegram notifications."""
+
+    def __init__(self):
+        self.bot_token = settings.TELEGRAM_BOT_TOKEN
+        self.api_url = f"https://api.telegram.org/bot{self.bot_token}"
+
+    async def send_message(
+        self,
+        chat_id: int,
+        text: str,
+        parse_mode: str = "HTML"
+    ) -> bool:
+        """Send a message to a Telegram chat."""
+        if not self.bot_token:
+            logger.warning("Telegram bot token not configured")
+            return False
+
+        try:
+            async with httpx.AsyncClient() as client:
+                response = await client.post(
+                    f"{self.api_url}/sendMessage",
+                    json={
+                        "chat_id": chat_id,
+                        "text": text,
+                        "parse_mode": parse_mode
+                    },
+                    timeout=10.0
+                )
+                if response.status_code == 200:
+                    return True
+                else:
+                    logger.error(f"Failed to send message: {response.text}")
+                    return False
+        except Exception as e:
+            logger.error(f"Error sending Telegram message: {e}")
+            return False
+
+    async def notify_user(
+        self,
+        db: AsyncSession,
+        user_id: int,
+        message: str
+    ) -> bool:
+        """Send notification to a user by user_id."""
+        result = await db.execute(
+            select(User).where(User.id == user_id)
+        )
+        user = result.scalar_one_or_none()
+
+        if not user or not user.telegram_id:
+            return False
+
+        return await self.send_message(user.telegram_id, message)
+
+    async def notify_marathon_participants(
+        self,
+        db: AsyncSession,
+        marathon_id: int,
+        message: str,
+        exclude_user_id: int | None = None
+    ) -> int:
+        """Send notification to all marathon participants with linked Telegram."""
+        result = await db.execute(
+            select(User)
+            .join(Participant, Participant.user_id == User.id)
+            .where(
+                Participant.marathon_id == marathon_id,
+                User.telegram_id.isnot(None)
+            )
+        )
+        users = result.scalars().all()
+
+        sent_count = 0
+        for user in users:
+            if exclude_user_id and user.id == exclude_user_id:
+                continue
+            if await self.send_message(user.telegram_id, message):
+                sent_count += 1
+
+        return sent_count
+
+    # Notification templates
+    async def notify_event_start(
+        self,
+        db: AsyncSession,
+        marathon_id: int,
+        event_type: str,
+        marathon_title: str
+    ) -> int:
+        """Notify participants about event start."""
+        event_messages = {
+            "golden_hour": f"🌟 <b>Начался Golden Hour</b> в «{marathon_title}»!\n\nВсе очки x1.5 в течение часа!",
+            "jackpot": f"🎰 <b>JACKPOT</b> в «{marathon_title}»!\n\nОчки x3 за следующий сложный челлендж!",
+            "double_risk": f"⚡ <b>Double Risk</b> в «{marathon_title}»!\n\nПоловина очков, но дропы бесплатны!",
+            "common_enemy": f"👥 <b>Common Enemy</b> в «{marathon_title}»!\n\nВсе получают одинаковый челлендж. Первые 3 — бонус!",
+            "swap": f"🔄 <b>Swap</b> в «{marathon_title}»!\n\nМожно поменяться заданием с другим участником!",
+            "game_choice": f"🎲 <b>Выбор игры</b> в «{marathon_title}»!\n\nВыбери игру и один из 3 челленджей!"
+        }
+
+        message = event_messages.get(
+            event_type,
+            f"📌 Новое событие в «{marathon_title}»!"
+        )
+
+        return await self.notify_marathon_participants(db, marathon_id, message)
+
+    async def notify_event_end(
+        self,
+        db: AsyncSession,
+        marathon_id: int,
+        event_type: str,
+        marathon_title: str
+    ) -> int:
+        """Notify participants about event end."""
+        event_names = {
+            "golden_hour": "Golden Hour",
+            "jackpot": "Jackpot",
+            "double_risk": "Double Risk",
+            "common_enemy": "Common Enemy",
+            "swap": "Swap",
+            "game_choice": "Выбор игры"
+        }
+
+        event_name = event_names.get(event_type, "Событие")
+        message = f"⏰ <b>{event_name}</b> в «{marathon_title}» завершён"
+
+        return await self.notify_marathon_participants(db, marathon_id, message)
+
+    async def notify_marathon_start(
+        self,
+        db: AsyncSession,
+        marathon_id: int,
+        marathon_title: str
+    ) -> int:
+        """Notify participants about marathon start."""
+        message = (
+            f"🚀 <b>Марафон «{marathon_title}» начался!</b>\n\n"
+            f"Время крутить колесо и получить первое задание!"
+        )
+        return await self.notify_marathon_participants(db, marathon_id, message)
+
+    async def notify_marathon_finish(
+        self,
+        db: AsyncSession,
+        marathon_id: int,
+        marathon_title: str
+    ) -> int:
+        """Notify participants about marathon finish."""
+        message = (
+            f"🏆 <b>Марафон «{marathon_title}» завершён!</b>\n\n"
+            f"Зайди на сайт, чтобы увидеть итоговую таблицу!"
+        )
+        return await self.notify_marathon_participants(db, marathon_id, message)
+
+    async def notify_dispute_raised(
+        self,
+        db: AsyncSession,
+        user_id: int,
+        marathon_title: str,
+        challenge_title: str
+    ) -> bool:
+        """Notify user about dispute raised on their assignment."""
+        message = (
+            f"⚠️ <b>На твоё задание подан спор</b>\n\n"
+            f"Марафон: {marathon_title}\n"
+            f"Задание: {challenge_title}\n\n"
+            f"Зайди на сайт, чтобы ответить на спор."
+        )
+        return await self.notify_user(db, user_id, message)
+
+    async def notify_dispute_resolved(
+        self,
+        db: AsyncSession,
+        user_id: int,
+        marathon_title: str,
+        challenge_title: str,
+        is_valid: bool
+    ) -> bool:
+        """Notify user about dispute resolution."""
+        if is_valid:
+            message = (
+                f"❌ <b>Спор признан обоснованным</b>\n\n"
+                f"Марафон: {marathon_title}\n"
+                f"Задание: {challenge_title}\n\n"
+                f"Задание возвращено. Выполни его заново."
+            )
+        else:
+            message = (
+                f"✅ <b>Спор отклонён</b>\n\n"
+                f"Марафон: {marathon_title}\n"
+                f"Задание: {challenge_title}\n\n"
+                f"Твоё выполнение засчитано!"
+            )
+        return await self.notify_user(db, user_id, message)
+
+
+# Global instance
+telegram_notifier = TelegramNotifier()
--- a/bot/Dockerfile
+++ b/bot/Dockerfile
@@ -0,0 +1,10 @@
+FROM python:3.11-slim
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+CMD ["python", "main.py"]
--- a/bot/config.py
+++ b/bot/config.py
@@ -0,0 +1,14 @@
+from pydantic_settings import BaseSettings
+
+
+class Settings(BaseSettings):
+    TELEGRAM_BOT_TOKEN: str
+    API_URL: str = "http://backend:8000"
+    BOT_USERNAME: str = ""  # Will be set dynamically on startup
+
+    class Config:
+        env_file = ".env"
+        extra = "ignore"
+
+
+settings = Settings()
--- a/bot/handlers/init.py
+++ b/bot/handlers/init.py
@@ -0,0 +1 @@
+# Bot handlers
--- a/bot/handlers/link.py
+++ b/bot/handlers/link.py
@@ -0,0 +1,60 @@
+from aiogram import Router, F
+from aiogram.filters import Command
+from aiogram.types import Message
+
+from keyboards.main_menu import get_main_menu
+from services.api_client import api_client
+
+router = Router()
+
+
+@router.message(Command("unlink"))
+async def cmd_unlink(message: Message):
+    """Handle /unlink command to disconnect Telegram account."""
+    user = await api_client.get_user_by_telegram_id(message.from_user.id)
+
+    if not user:
+        await message.answer(
+            "Твой аккаунт не привязан к Game Marathon.\n"
+            "Привяжи его через настройки профиля на сайте.",
+            reply_markup=get_main_menu()
+        )
+        return
+
+    result = await api_client.unlink_telegram(message.from_user.id)
+
+    if result.get("success"):
+        await message.answer(
+            "<b>Аккаунт отвязан</b>\n\n"
+            "Ты больше не будешь получать уведомления.\n"
+            "Чтобы привязать аккаунт снова, используй кнопку в настройках профиля на сайте.",
+            reply_markup=get_main_menu()
+        )
+    else:
+        await message.answer(
+            "Произошла ошибка при отвязке аккаунта.\n"
+            "Попробуй позже или обратись к администратору.",
+            reply_markup=get_main_menu()
+        )
+
+
+@router.message(Command("status"))
+async def cmd_status(message: Message):
+    """Check account link status."""
+    user = await api_client.get_user_by_telegram_id(message.from_user.id)
+
+    if user:
+        await message.answer(
+            f"<b>Статус аккаунта</b>\n\n"
+            f"✅ Аккаунт привязан\n"
+            f"👤 Никнейм: <b>{user.get('nickname', 'N/A')}</b>\n"
+            f"🆔 ID: {user.get('id', 'N/A')}",
+            reply_markup=get_main_menu()
+        )
+    else:
+        await message.answer(
+            "<b>Статус аккаунта</b>\n\n"
+            "❌ Аккаунт не привязан\n\n"
+            "Привяжи его через настройки профиля на сайте.",
+            reply_markup=get_main_menu()
+        )
--- a/bot/handlers/marathons.py
+++ b/bot/handlers/marathons.py
@@ -0,0 +1,211 @@
+from aiogram import Router, F
+from aiogram.filters import Command
+from aiogram.types import Message, CallbackQuery
+
+from keyboards.main_menu import get_main_menu
+from keyboards.inline import get_marathons_keyboard, get_marathon_details_keyboard
+from services.api_client import api_client
+
+router = Router()
+
+
+@router.message(Command("marathons"))
+@router.message(F.text == "📊 Мои марафоны")
+async def cmd_marathons(message: Message):
+    """Show user's marathons."""
+    user = await api_client.get_user_by_telegram_id(message.from_user.id)
+
+    if not user:
+        await message.answer(
+            "Сначала привяжи аккаунт через настройки профиля на сайте.",
+            reply_markup=get_main_menu()
+        )
+        return
+
+    marathons = await api_client.get_user_marathons(message.from_user.id)
+
+    if not marathons:
+        await message.answer(
+            "<b>Мои марафоны</b>\n\n"
+            "У тебя пока нет активных марафонов.\n"
+            "Присоединись к марафону на сайте!",
+            reply_markup=get_main_menu()
+        )
+        return
+
+    text = "<b>📊 Мои марафоны</b>\n\n"
+
+    for m in marathons:
+        status_emoji = {
+            "preparing": "⏳",
+            "active": "🎮",
+            "finished": "🏁"
+        }.get(m.get("status"), "❓")
+
+        text += f"{status_emoji} <b>{m.get('title')}</b>\n"
+        text += f"   Очки: {m.get('total_points', 0)} | "
+        text += f"Место: #{m.get('position', '?')}\n\n"
+
+    await message.answer(
+        text,
+        reply_markup=get_marathons_keyboard(marathons)
+    )
+
+
+@router.callback_query(F.data.startswith("marathon:"))
+async def marathon_details(callback: CallbackQuery):
+    """Show marathon details."""
+    marathon_id = int(callback.data.split(":")[1])
+
+    details = await api_client.get_marathon_details(
+        marathon_id=marathon_id,
+        telegram_id=callback.from_user.id
+    )
+
+    if not details:
+        await callback.answer("Не удалось загрузить данные марафона", show_alert=True)
+        return
+
+    marathon = details.get("marathon", {})
+    participant = details.get("participant", {})
+    active_events = details.get("active_events", [])
+    current_assignment = details.get("current_assignment")
+
+    status_text = {
+        "preparing": "⏳ Подготовка",
+        "active": "🎮 Активен",
+        "finished": "🏁 Завершён"
+    }.get(marathon.get("status"), "❓")
+
+    text = f"<b>{marathon.get('title')}</b>\n"
+    text += f"Статус: {status_text}\n\n"
+
+    text += f"<b>📈 Твоя статистика:</b>\n"
+    text += f"• Очки: <b>{participant.get('total_points', 0)}</b>\n"
+    text += f"• Место: <b>#{details.get('position', '?')}</b>\n"
+    text += f"• Стрик: <b>{participant.get('current_streak', 0)}</b> 🔥\n"
+    text += f"• Дропов: <b>{participant.get('drop_count', 0)}</b>\n\n"
+
+    if active_events:
+        text += "<b>⚡ Активные события:</b>\n"
+        for event in active_events:
+            event_emoji = {
+                "golden_hour": "🌟",
+                "jackpot": "🎰",
+                "double_risk": "⚡",
+                "common_enemy": "👥",
+                "swap": "🔄",
+                "game_choice": "🎲"
+            }.get(event.get("type"), "📌")
+            text += f"{event_emoji} {event.get('type', '').replace('_', ' ').title()}\n"
+        text += "\n"
+
+    if current_assignment:
+        challenge = current_assignment.get("challenge", {})
+        game = challenge.get("game", {})
+        text += f"<b>🎯 Текущее задание:</b>\n"
+        text += f"Игра: {game.get('title', 'N/A')}\n"
+        text += f"Задание: {challenge.get('title', 'N/A')}\n"
+        text += f"Сложность: {challenge.get('difficulty', 'N/A')}\n"
+        text += f"Очки: {challenge.get('points', 0)}\n"
+
+    await callback.message.edit_text(
+        text,
+        reply_markup=get_marathon_details_keyboard(marathon_id)
+    )
+    await callback.answer()
+
+
+@router.callback_query(F.data == "back_to_marathons")
+async def back_to_marathons(callback: CallbackQuery):
+    """Go back to marathons list."""
+    marathons = await api_client.get_user_marathons(callback.from_user.id)
+
+    if not marathons:
+        await callback.message.edit_text(
+            "<b>Мои марафоны</b>\n\n"
+            "У тебя пока нет активных марафонов."
+        )
+        await callback.answer()
+        return
+
+    text = "<b>📊 Мои марафоны</b>\n\n"
+
+    for m in marathons:
+        status_emoji = {
+            "preparing": "⏳",
+            "active": "🎮",
+            "finished": "🏁"
+        }.get(m.get("status"), "❓")
+
+        text += f"{status_emoji} <b>{m.get('title')}</b>\n"
+        text += f"   Очки: {m.get('total_points', 0)} | "
+        text += f"Место: #{m.get('position', '?')}\n\n"
+
+    await callback.message.edit_text(
+        text,
+        reply_markup=get_marathons_keyboard(marathons)
+    )
+    await callback.answer()
+
+
+@router.message(Command("stats"))
+@router.message(F.text == "📈 Статистика")
+async def cmd_stats(message: Message):
+    """Show user's overall statistics."""
+    user = await api_client.get_user_by_telegram_id(message.from_user.id)
+
+    if not user:
+        await message.answer(
+            "Сначала привяжи аккаунт через настройки профиля на сайте.",
+            reply_markup=get_main_menu()
+        )
+        return
+
+    stats = await api_client.get_user_stats(message.from_user.id)
+
+    if not stats:
+        await message.answer(
+            "<b>📈 Статистика</b>\n\n"
+            "Пока нет данных для отображения.\n"
+            "Начни участвовать в марафонах!",
+            reply_markup=get_main_menu()
+        )
+        return
+
+    text = f"<b>📈 Общая статистика</b>\n\n"
+    text += f"👤 <b>{user.get('nickname', 'Игрок')}</b>\n\n"
+    text += f"🏆 Марафонов завершено: <b>{stats.get('marathons_completed', 0)}</b>\n"
+    text += f"🎮 Марафонов активно: <b>{stats.get('marathons_active', 0)}</b>\n"
+    text += f"✅ Заданий выполнено: <b>{stats.get('challenges_completed', 0)}</b>\n"
+    text += f"💰 Всего очков: <b>{stats.get('total_points', 0)}</b>\n"
+    text += f"🔥 Лучший стрик: <b>{stats.get('best_streak', 0)}</b>\n"
+
+    await message.answer(text, reply_markup=get_main_menu())
+
+
+@router.message(Command("settings"))
+@router.message(F.text == "⚙️ Настройки")
+async def cmd_settings(message: Message):
+    """Show notification settings."""
+    user = await api_client.get_user_by_telegram_id(message.from_user.id)
+
+    if not user:
+        await message.answer(
+            "Сначала привяжи аккаунт через настройки профиля на сайте.",
+            reply_markup=get_main_menu()
+        )
+        return
+
+    await message.answer(
+        "<b>⚙️ Настройки</b>\n\n"
+        "Управление уведомлениями будет доступно в следующем обновлении.\n\n"
+        "Сейчас ты получаешь все уведомления:\n"
+        "• 🌟 События (Golden Hour, Jackpot и др.)\n"
+        "• 🚀 Старт/финиш марафонов\n"
+        "• ⚠️ Споры по заданиям\n\n"
+        "Команды:\n"
+        "/unlink - Отвязать аккаунт\n"
+        "/status - Проверить привязку",
+        reply_markup=get_main_menu()
+    )
--- a/bot/handlers/start.py
+++ b/bot/handlers/start.py
@@ -0,0 +1,120 @@
+import logging
+
+from aiogram import Router, F
+from aiogram.filters import CommandStart, Command, CommandObject
+from aiogram.types import Message
+
+from keyboards.main_menu import get_main_menu
+from services.api_client import api_client
+
+logger = logging.getLogger(__name__)
+router = Router()
+
+
+@router.message(CommandStart())
+async def cmd_start(message: Message, command: CommandObject):
+    """Handle /start command with or without deep link."""
+    logger.info(f"[START] ==================== START COMMAND ====================")
+    logger.info(f"[START] Telegram user: id={message.from_user.id}, username=@{message.from_user.username}")
+    logger.info(f"[START] Full message text: '{message.text}'")
+    logger.info(f"[START] Deep link args (command.args): '{command.args}'")
+
+    # Check if there's a deep link token (for account linking)
+    token = command.args
+    if token:
+        logger.info(f"[START] -------- TOKEN RECEIVED --------")
+        logger.info(f"[START] Token: {token}")
+        logger.info(f"[START] Token length: {len(token)} chars")
+
+        logger.info(f"[START] -------- CALLING API --------")
+        logger.info(f"[START] Sending to /telegram/confirm-link:")
+        logger.info(f"[START]   - token: {token}")
+        logger.info(f"[START]   - telegram_id: {message.from_user.id}")
+        logger.info(f"[START]   - telegram_username: {message.from_user.username}")
+
+        result = await api_client.confirm_telegram_link(
+            token=token,
+            telegram_id=message.from_user.id,
+            telegram_username=message.from_user.username
+        )
+
+        logger.info(f"[START] -------- API RESPONSE --------")
+        logger.info(f"[START] Response: {result}")
+        logger.info(f"[START] Success: {result.get('success')}")
+
+        if result.get("success"):
+            user_nickname = result.get("nickname", "пользователь")
+            logger.info(f"[START] ✅ LINK SUCCESS! User '{user_nickname}' linked to telegram_id={message.from_user.id}")
+            await message.answer(
+                f"<b>Аккаунт успешно привязан!</b>\n\n"
+                f"Привет, <b>{user_nickname}</b>!\n\n"
+                f"Теперь ты будешь получать уведомления о:\n"
+                f"• Начале и окончании событий (Golden Hour, Jackpot и др.)\n"
+                f"• Старте и завершении марафонов\n"
+                f"• Спорах по твоим заданиям\n\n"
+                f"Используй меню ниже для навигации:",
+                reply_markup=get_main_menu()
+            )
+            return
+        else:
+            error = result.get("error", "Неизвестная ошибка")
+            logger.error(f"[START] ❌ LINK FAILED!")
+            logger.error(f"[START] Error: {error}")
+            logger.error(f"[START] Token was: {token}")
+            await message.answer(
+                f"<b>Ошибка привязки аккаунта</b>\n\n"
+                f"{error}\n\n"
+                f"Попробуй получить новую ссылку на сайте.",
+                reply_markup=get_main_menu()
+            )
+            return
+
+    # No token - regular start
+    logger.info(f"[START] No token, checking if user is already linked...")
+    user = await api_client.get_user_by_telegram_id(message.from_user.id)
+    logger.info(f"[START] API response: {user}")
+
+    if user:
+        await message.answer(
+            f"<b>С возвращением, {user.get('nickname', 'игрок')}!</b>\n\n"
+            f"Твой аккаунт привязан. Используй меню для навигации:",
+            reply_markup=get_main_menu()
+        )
+    else:
+        await message.answer(
+            "<b>Добро пожаловать в Game Marathon Bot!</b>\n\n"
+            "Этот бот поможет тебе следить за марафонами и "
+            "получать уведомления о важных событиях.\n\n"
+            "<b>Для начала работы:</b>\n"
+            "1. Зайди на сайт в настройки профиля\n"
+            "2. Нажми кнопку «Привязать Telegram»\n"
+            "3. Перейди по полученной ссылке\n\n"
+            "После привязки ты сможешь:\n"
+            "• Смотреть свои марафоны\n"
+            "• Получать уведомления о событиях\n"
+            "• Следить за статистикой",
+            reply_markup=get_main_menu()
+        )
+
+
+@router.message(Command("help"))
+@router.message(F.text == "❓ Помощь")
+async def cmd_help(message: Message):
+    """Handle /help command."""
+    await message.answer(
+        "<b>Справка по командам:</b>\n\n"
+        "/start - Начать работу с ботом\n"
+        "/marathons - Мои марафоны\n"
+        "/stats - Моя статистика\n"
+        "/settings - Настройки уведомлений\n"
+        "/help - Эта справка\n\n"
+        "<b>Уведомления:</b>\n"
+        "Бот присылает уведомления о:\n"
+        "• 🌟 Golden Hour - очки x1.5\n"
+        "• 🎰 Jackpot - очки x3\n"
+        "• ⚡ Double Risk - половина очков, дропы бесплатны\n"
+        "• 👥 Common Enemy - общий челлендж\n"
+        "• 🚀 Старт/финиш марафонов\n"
+        "• ⚠️ Споры по заданиям",
+        reply_markup=get_main_menu()
+    )
--- a/bot/keyboards/init.py
+++ b/bot/keyboards/init.py
@@ -0,0 +1 @@
+# Bot keyboards
--- a/bot/keyboards/inline.py
+++ b/bot/keyboards/inline.py
@@ -0,0 +1,42 @@
+from aiogram.types import InlineKeyboardMarkup, InlineKeyboardButton
+
+
+def get_marathons_keyboard(marathons: list) -> InlineKeyboardMarkup:
+    """Create keyboard with marathon buttons."""
+    buttons = []
+
+    for marathon in marathons:
+        status_emoji = {
+            "preparing": "⏳",
+            "active": "🎮",
+            "finished": "🏁"
+        }.get(marathon.get("status"), "❓")
+
+        buttons.append([
+            InlineKeyboardButton(
+                text=f"{status_emoji} {marathon.get('title', 'Marathon')}",
+                callback_data=f"marathon:{marathon.get('id')}"
+            )
+        ])
+
+    return InlineKeyboardMarkup(inline_keyboard=buttons)
+
+
+def get_marathon_details_keyboard(marathon_id: int) -> InlineKeyboardMarkup:
+    """Create keyboard for marathon details view."""
+    buttons = [
+        [
+            InlineKeyboardButton(
+                text="🔄 Обновить",
+                callback_data=f"marathon:{marathon_id}"
+            )
+        ],
+        [
+            InlineKeyboardButton(
+                text="◀️ Назад к списку",
+                callback_data="back_to_marathons"
+            )
+        ]
+    ]
+
+    return InlineKeyboardMarkup(inline_keyboard=buttons)
--- a/bot/keyboards/main_menu.py
+++ b/bot/keyboards/main_menu.py
@@ -0,0 +1,21 @@
+from aiogram.types import ReplyKeyboardMarkup, KeyboardButton
+
+
+def get_main_menu() -> ReplyKeyboardMarkup:
+    """Create main menu keyboard."""
+    keyboard = [
+        [
+            KeyboardButton(text="📊 Мои марафоны"),
+            KeyboardButton(text="📈 Статистика")
+        ],
+        [
+            KeyboardButton(text="⚙️ Настройки"),
+            KeyboardButton(text="❓ Помощь")
+        ]
+    ]
+
+    return ReplyKeyboardMarkup(
+        keyboard=keyboard,
+        resize_keyboard=True,
+        input_field_placeholder="Выбери действие..."
+    )
--- a/bot/main.py
+++ b/bot/main.py
@@ -0,0 +1,65 @@
+import asyncio
+import logging
+import sys
+
+from aiogram import Bot, Dispatcher
+from aiogram.client.default import DefaultBotProperties
+from aiogram.enums import ParseMode
+
+from config import settings
+from handlers import start, marathons, link
+from middlewares.logging import LoggingMiddleware
+
+# Configure logging to stdout with DEBUG level
+logging.basicConfig(
+    level=logging.DEBUG,
+    format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
+    handlers=[
+        logging.StreamHandler(sys.stdout)
+    ]
+)
+logger = logging.getLogger(__name__)
+
+# Set aiogram logging level
+logging.getLogger("aiogram").setLevel(logging.INFO)
+
+
+async def main():
+    logger.info("="*50)
+    logger.info("Starting Game Marathon Bot...")
+    logger.info(f"API_URL: {settings.API_URL}")
+    logger.info(f"BOT_TOKEN: {settings.TELEGRAM_BOT_TOKEN[:20]}...")
+    logger.info("="*50)
+
+    bot = Bot(
+        token=settings.TELEGRAM_BOT_TOKEN,
+        default=DefaultBotProperties(parse_mode=ParseMode.HTML)
+    )
+
+    # Get bot username for deep links
+    bot_info = await bot.get_me()
+    settings.BOT_USERNAME = bot_info.username
+    logger.info(f"Bot info: @{settings.BOT_USERNAME} (id={bot_info.id})")
+
+    dp = Dispatcher()
+
+    # Register middleware
+    dp.message.middleware(LoggingMiddleware())
+    logger.info("Logging middleware registered")
+
+    # Register routers
+    logger.info("Registering routers...")
+    dp.include_router(start.router)
+    dp.include_router(link.router)
+    dp.include_router(marathons.router)
+    logger.info("Routers registered: start, link, marathons")
+
+    # Start polling
+    logger.info("Deleting webhook and starting polling...")
+    await bot.delete_webhook(drop_pending_updates=True)
+    logger.info("Polling started! Waiting for messages...")
+    await dp.start_polling(bot)
+
+
+if __name__ == "__main__":
+    asyncio.run(main())
--- a/bot/middlewares/init.py
+++ b/bot/middlewares/init.py
@@ -0,0 +1 @@
+# Bot middlewares
--- a/bot/middlewares/logging.py
+++ b/bot/middlewares/logging.py
@@ -0,0 +1,28 @@
+import logging
+from typing import Any, Awaitable, Callable, Dict
+
+from aiogram import BaseMiddleware
+from aiogram.types import Message, Update
+
+logger = logging.getLogger(__name__)
+
+
+class LoggingMiddleware(BaseMiddleware):
+    async def __call__(
+        self,
+        handler: Callable[[Message, Dict[str, Any]], Awaitable[Any]],
+        event: Message,
+        data: Dict[str, Any]
+    ) -> Any:
+        logger.info("="*60)
+        logger.info(f"[MIDDLEWARE] Incoming message from user {event.from_user.id}")
+        logger.info(f"[MIDDLEWARE] Username: @{event.from_user.username}")
+        logger.info(f"[MIDDLEWARE] Text: {event.text}")
+        logger.info(f"[MIDDLEWARE] Message ID: {event.message_id}")
+        logger.info(f"[MIDDLEWARE] Chat ID: {event.chat.id}")
+        logger.info("="*60)
+
+        result = await handler(event, data)
+
+        logger.info(f"[MIDDLEWARE] Handler completed for message {event.message_id}")
+        return result
--- a/bot/requirements.txt
+++ b/bot/requirements.txt
@@ -0,0 +1,5 @@
+aiogram==3.23.0
+aiohttp==3.10.5
+pydantic==2.9.2
+pydantic-settings==2.5.2
+python-dotenv==1.0.1
--- a/bot/services/init.py
+++ b/bot/services/init.py
@@ -0,0 +1 @@
+# Bot services
--- a/bot/services/api_client.py
+++ b/bot/services/api_client.py
@@ -0,0 +1,123 @@
+import logging
+from typing import Any
+
+import aiohttp
+
+from config import settings
+
+logger = logging.getLogger(__name__)
+
+
+class APIClient:
+    """HTTP client for backend API communication."""
+
+    def __init__(self):
+        self.base_url = settings.API_URL
+        self._session: aiohttp.ClientSession | None = None
+        logger.info(f"[APIClient] Initialized with base_url: {self.base_url}")
+
+    async def _get_session(self) -> aiohttp.ClientSession:
+        if self._session is None or self._session.closed:
+            logger.info("[APIClient] Creating new aiohttp session")
+            self._session = aiohttp.ClientSession()
+        return self._session
+
+    async def _request(
+        self,
+        method: str,
+        endpoint: str,
+        **kwargs
+    ) -> dict[str, Any] | None:
+        """Make HTTP request to backend API."""
+        session = await self._get_session()
+        url = f"{self.base_url}/api/v1{endpoint}"
+
+        logger.info(f"[APIClient] {method} {url}")
+        if 'json' in kwargs:
+            logger.info(f"[APIClient] Request body: {kwargs['json']}")
+        if 'params' in kwargs:
+            logger.info(f"[APIClient] Request params: {kwargs['params']}")
+
+        try:
+            async with session.request(method, url, **kwargs) as response:
+                logger.info(f"[APIClient] Response status: {response.status}")
+                response_text = await response.text()
+                logger.info(f"[APIClient] Response body: {response_text[:500]}")
+
+                if response.status == 200:
+                    import json
+                    return json.loads(response_text)
+                elif response.status == 404:
+                    logger.warning(f"[APIClient] 404 Not Found")
+                    return None
+                else:
+                    logger.error(f"[APIClient] API error {response.status}: {response_text}")
+                    return {"error": response_text}
+        except aiohttp.ClientError as e:
+            logger.error(f"[APIClient] Request failed: {e}")
+            return {"error": str(e)}
+        except Exception as e:
+            logger.error(f"[APIClient] Unexpected error: {e}")
+            return {"error": str(e)}
+
+    async def confirm_telegram_link(
+        self,
+        token: str,
+        telegram_id: int,
+        telegram_username: str | None
+    ) -> dict[str, Any]:
+        """Confirm Telegram account linking."""
+        result = await self._request(
+            "POST",
+            "/telegram/confirm-link",
+            json={
+                "token": token,
+                "telegram_id": telegram_id,
+                "telegram_username": telegram_username
+            }
+        )
+        return result or {"error": "Не удалось связаться с сервером"}
+
+    async def get_user_by_telegram_id(self, telegram_id: int) -> dict[str, Any] | None:
+        """Get user by Telegram ID."""
+        return await self._request("GET", f"/telegram/user/{telegram_id}")
+
+    async def unlink_telegram(self, telegram_id: int) -> dict[str, Any]:
+        """Unlink Telegram account."""
+        result = await self._request(
+            "POST",
+            f"/telegram/unlink/{telegram_id}"
+        )
+        return result or {"error": "Не удалось связаться с сервером"}
+
+    async def get_user_marathons(self, telegram_id: int) -> list[dict[str, Any]]:
+        """Get user's marathons."""
+        result = await self._request("GET", f"/telegram/marathons/{telegram_id}")
+        if isinstance(result, list):
+            return result
+        return result.get("marathons", []) if result else []
+
+    async def get_marathon_details(
+        self,
+        marathon_id: int,
+        telegram_id: int
+    ) -> dict[str, Any] | None:
+        """Get marathon details for user."""
+        return await self._request(
+            "GET",
+            f"/telegram/marathon/{marathon_id}",
+            params={"telegram_id": telegram_id}
+        )
+
+    async def get_user_stats(self, telegram_id: int) -> dict[str, Any] | None:
+        """Get user's overall statistics."""
+        return await self._request("GET", f"/telegram/stats/{telegram_id}")
+
+    async def close(self):
+        """Close the HTTP session."""
+        if self._session and not self._session.closed:
+            await self._session.close()
+
+
+# Global API client instance
+api_client = APIClient()
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -27,6 +27,7 @@ services:
      SECRET_KEY: ${SECRET_KEY:-change-me-in-production}
      OPENAI_API_KEY: ${OPENAI_API_KEY}
      TELEGRAM_BOT_TOKEN: ${TELEGRAM_BOT_TOKEN}
+      TELEGRAM_BOT_USERNAME: ${TELEGRAM_BOT_USERNAME:-GameMarathonBot}
      DEBUG: ${DEBUG:-false}
      # S3 Storage
      S3_ENABLED: ${S3_ENABLED:-false}
@@ -72,5 +73,17 @@ services:
      - backend
    restart: unless-stopped

+  bot:
+    build:
+      context: ./bot
+      dockerfile: Dockerfile
+    container_name: marathon-bot
+    environment:
+      - TELEGRAM_BOT_TOKEN=${TELEGRAM_BOT_TOKEN}
+      - API_URL=http://backend:8000
+    depends_on:
+      - backend
+    restart: unless-stopped
+
 volumes:
  postgres_data:
--- a/frontend/src/api/telegram.ts
+++ b/frontend/src/api/telegram.ts
@@ -0,0 +1,22 @@
+import client from './client'
+
+export interface TelegramLinkToken {
+  token: string
+  bot_url: string
+}
+
+export interface TelegramStatus {
+  telegram_id: number | null
+  telegram_username: string | null
+}
+
+export const telegramApi = {
+  generateLinkToken: async (): Promise<TelegramLinkToken> => {
+    const response = await client.post<TelegramLinkToken>('/telegram/generate-link-token')
+    return response.data
+  },
+
+  unlinkTelegram: async (): Promise<void> => {
+    await client.post('/users/me/telegram/unlink')
+  },
+}
--- a/frontend/src/components/TelegramLink.tsx
+++ b/frontend/src/components/TelegramLink.tsx
@@ -0,0 +1,186 @@
+import { useState } from 'react'
+import { MessageCircle, ExternalLink, X, Loader2 } from 'lucide-react'
+import { telegramApi } from '@/api/telegram'
+import { useAuthStore } from '@/store/auth'
+
+export function TelegramLink() {
+  const { user, updateUser } = useAuthStore()
+  const [isOpen, setIsOpen] = useState(false)
+  const [loading, setLoading] = useState(false)
+  const [botUrl, setBotUrl] = useState<string | null>(null)
+  const [error, setError] = useState<string | null>(null)
+
+  const isLinked = !!user?.telegram_id
+
+  const handleGenerateLink = async () => {
+    setLoading(true)
+    setError(null)
+    try {
+      const { bot_url } = await telegramApi.generateLinkToken()
+      setBotUrl(bot_url)
+    } catch (err) {
+      setError('Не удалось сгенерировать ссылку')
+    } finally {
+      setLoading(false)
+    }
+  }
+
+  const handleUnlink = async () => {
+    setLoading(true)
+    setError(null)
+    try {
+      await telegramApi.unlinkTelegram()
+      updateUser({ telegram_id: null, telegram_username: null })
+      setIsOpen(false)
+    } catch (err) {
+      setError('Не удалось отвязать аккаунт')
+    } finally {
+      setLoading(false)
+    }
+  }
+
+  const handleOpenBot = () => {
+    if (botUrl) {
+      window.open(botUrl, '_blank')
+      setIsOpen(false)
+      setBotUrl(null)
+    }
+  }
+
+  return (
+    <>
+      <button
+        onClick={() => setIsOpen(true)}
+        className={`p-2 rounded-lg transition-colors ${
+          isLinked
+            ? 'text-blue-400 hover:text-blue-300 hover:bg-gray-700'
+            : 'text-gray-400 hover:text-white hover:bg-gray-700'
+        }`}
+        title={isLinked ? 'Telegram привязан' : 'Привязать Telegram'}
+      >
+        <MessageCircle className="w-5 h-5" />
+      </button>
+
+      {isOpen && (
+        <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50 p-4">
+          <div className="bg-gray-800 rounded-xl max-w-md w-full p-6 relative">
+            <button
+              onClick={() => {
+                setIsOpen(false)
+                setBotUrl(null)
+                setError(null)
+              }}
+              className="absolute top-4 right-4 text-gray-400 hover:text-white"
+            >
+              <X className="w-5 h-5" />
+            </button>
+
+            <div className="flex items-center gap-3 mb-6">
+              <div className="w-12 h-12 bg-blue-500/20 rounded-full flex items-center justify-center">
+                <MessageCircle className="w-6 h-6 text-blue-400" />
+              </div>
+              <div>
+                <h2 className="text-xl font-bold text-white">Telegram</h2>
+                <p className="text-sm text-gray-400">
+                  {isLinked ? 'Аккаунт привязан' : 'Привяжи аккаунт'}
+                </p>
+              </div>
+            </div>
+
+            {error && (
+              <div className="mb-4 p-3 bg-red-500/20 border border-red-500/50 rounded-lg text-red-400 text-sm">
+                {error}
+              </div>
+            )}
+
+            {isLinked ? (
+              <div className="space-y-4">
+                <div className="p-4 bg-gray-700/50 rounded-lg">
+                  <p className="text-sm text-gray-400 mb-1">Привязан к:</p>
+                  <p className="text-white font-medium">
+                    {user?.telegram_username ? `@${user.telegram_username}` : `ID: ${user?.telegram_id}`}
+                  </p>
+                </div>
+
+                <div className="text-sm text-gray-400">
+                  <p className="mb-2">Ты будешь получать уведомления о:</p>
+                  <ul className="list-disc list-inside space-y-1">
+                    <li>Начале и окончании событий</li>
+                    <li>Старте и завершении марафонов</li>
+                    <li>Спорах по заданиям</li>
+                  </ul>
+                </div>
+
+                <button
+                  onClick={handleUnlink}
+                  disabled={loading}
+                  className="w-full py-3 px-4 bg-red-500/20 hover:bg-red-500/30 text-red-400 rounded-lg font-medium transition-colors disabled:opacity-50"
+                >
+                  {loading ? (
+                    <Loader2 className="w-5 h-5 animate-spin mx-auto" />
+                  ) : (
+                    'Отвязать аккаунт'
+                  )}
+                </button>
+              </div>
+            ) : botUrl ? (
+              <div className="space-y-4">
+                <p className="text-gray-300">
+                  Нажми кнопку ниже, чтобы открыть бота и завершить привязку:
+                </p>
+
+                <button
+                  onClick={handleOpenBot}
+                  className="w-full py-3 px-4 bg-blue-500 hover:bg-blue-600 text-white rounded-lg font-medium transition-colors flex items-center justify-center gap-2"
+                >
+                  <ExternalLink className="w-5 h-5" />
+                  Открыть Telegram
+                </button>
+
+                <p className="text-sm text-gray-500 text-center">
+                  Ссылка действительна 10 минут
+                </p>
+              </div>
+            ) : (
+              <div className="space-y-4">
+                <p className="text-gray-300">
+                  Привяжи Telegram, чтобы получать уведомления о важных событиях:
+                </p>
+
+                <ul className="text-sm text-gray-400 space-y-2">
+                  <li className="flex items-center gap-2">
+                    <span className="text-yellow-400">🌟</span>
+                    Golden Hour - очки x1.5
+                  </li>
+                  <li className="flex items-center gap-2">
+                    <span className="text-yellow-400">🎰</span>
+                    Jackpot - очки x3
+                  </li>
+                  <li className="flex items-center gap-2">
+                    <span className="text-yellow-400">⚡</span>
+                    Double Risk и другие события
+                  </li>
+                </ul>
+
+                <button
+                  onClick={handleGenerateLink}
+                  disabled={loading}
+                  className="w-full py-3 px-4 bg-blue-500 hover:bg-blue-600 text-white rounded-lg font-medium transition-colors disabled:opacity-50 flex items-center justify-center gap-2"
+                >
+                  {loading ? (
+                    <Loader2 className="w-5 h-5 animate-spin" />
+                  ) : (
+                    <>
+                      <MessageCircle className="w-5 h-5" />
+                      Привязать Telegram
+                    </>
+                  )}
+                </button>
+              </div>
+            )}
+          </div>
+        </div>
+      )}
+    </>
+  )
+}
--- a/frontend/src/components/layout/Layout.tsx
+++ b/frontend/src/components/layout/Layout.tsx
@@ -1,6 +1,7 @@
 import { Outlet, Link, useNavigate } from 'react-router-dom'
 import { useAuthStore } from '@/store/auth'
 import { Gamepad2, LogOut, Trophy, User } from 'lucide-react'
+import { TelegramLink } from '@/components/TelegramLink'

 export function Layout() {
  const { user, isAuthenticated, logout } = useAuthStore()
@@ -38,6 +39,8 @@ export function Layout() {
                    <span>{user?.nickname}</span>
                  </div>

+                  <TelegramLink />
+
                  <button
                    onClick={handleLogout}
                    className="p-2 text-gray-400 hover:text-white transition-colors"
--- a/frontend/src/store/auth.ts
+++ b/frontend/src/store/auth.ts
@@ -17,6 +17,7 @@ interface AuthState {
  clearError: () => void
  setPendingInviteCode: (code: string | null) => void
  consumePendingInviteCode: () => string | null
+  updateUser: (updates: Partial<User>) => void
 }

 export const useAuthStore = create<AuthState>()(
@@ -89,6 +90,13 @@ export const useAuthStore = create<AuthState>()(
        set({ pendingInviteCode: null })
        return code
      },
+
+      updateUser: (updates) => {
+        const currentUser = get().user
+        if (currentUser) {
+          set({ user: { ...currentUser, ...updates } })
+        }
+      },
    }),
    {
      name: 'auth-storage',
--- a/frontend/src/types/index.ts
+++ b/frontend/src/types/index.ts
@@ -7,6 +7,8 @@ export interface User {
  nickname: string
  avatar_url: string | null
  role: UserRole
+  telegram_id: number | null
+  telegram_username: string | null
  created_at: string
 }